Parallels

Symptoms

Apache module mod_security and PHP extension suhosin enabled on publishing server may have various negative affects on Sitebuilder workability. Among them unability to manage modules or site publishing.

Resolution

mod_security and suhosin  were not tested completely with Plesk Sitebuilder. It is recommended to disable mod_security and suhosin on the publishing server.
To leave mod_seturity enabled, add the directives below into mod_security configuration.



Where /path/to/your-domain.com/public_html is location of the apache virtual host the site is published to.

Additional information

Refer to article http://kb.parallels.com/en/5503 for possible reasons of error "Error! Operation has not been completed".